26 MISCELLANEOUS COTTON INSECTS. 
they begin mating and depositing eggs, though many of them are grown [now], 
as the large pair I am mailing to-day. Fourth, "In what places are they most 
numerous and destructive?" In cotton fields. They have never seriously injured 
any other crop than cotton, though they are found in pasture far from any farm. 
They are destructive in Coleman, Kunnells, Burnet, and Llano counties and as far 
west as Concho County, and I know not how much farther west. 
These grasshoppers are numerous in nearly all districts in these western counties 
in which the hog law has been enforced for the past few years. "We can not use the 
poisoned bran mash here on account of the great honey dearth, as it would poison 
my neighbors' bees as well as my own. 
However, the mash was tried, as Mr. Smith's next letter, dated July 6, 
indicates. 
The hoppers are still giving me trouble, but we have them somewhat checked now 
by using the poison on them as suggested by you. I am using the Avheat bran sweet- 
ened with a cheap grade of molasses and arsenic mixed with it, and I believe it would 
have been a perfect success if I had commenced in time. I saw the first pair mating 
June 10. They get their full growth by the last of May. As to when and where 
they deposit their eggs, I have never been able to ascertain. 
Mr. Smith sent numerous specimens, which were kept in cages in 
the laboratory for some time, but all failed to oviposit. 
Undoubtedly' the poisoned bran mash will prove perfectly effective 
for the control of these insects if employed plentifully early in the 
season. It is possible that the eggs are laid in grass land, and that 
they or the }^oung hoppers ma}' be eaten to a considerable extent by 
hogs where the latter are not restricted. Probablj' with larger areas 
of land under cultivation in these western counties the species will 
become less abundant, for, although it occurs as far north as Kansas 
and western Missouri, it is reported by Doctor Riley to be not very 
injurious there. 
The species has been well named the clumsy locust, for it is exceed- 
ingly awkward. The wings are shorter than those of the other lubber 
grasshoppers, and, unlike those of Dictyophorus, are not raised from 
the back when disturbed. The coloration is somewhat variable, being 
mostly a tawny brown, with markings of greenish or yellowish, the 
latter often being quite pinkish. 
THE BUR CLOVER APHIS. 
(Aphis medicaginis Koch.) 
Associated with the common cotton or melon aphis, Aphis gossypii 
Glover (fig. 14), there was found another species concerning which 
no previous economic mention has come to our notice, although the 
Aphis sp. mentioned by Mally ° may be the same thing. 
The two species occur together on the young cotton plants just as 
the first leaves are forming. A. medicaginis may be found abun- 
dantly at this time, and for a week or two earlier, on the common bur 
«1891: Bui. 24, o. s., Div. Ent., U. S. Dept. Agric, p. 30. 
